.sidebar-wrap {
    width: 100%;
    height: 100%;
    background: rgb(102, 102, 102);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    opacity: 0.6;
    overflow: hidden;
    z-index: 88;
}

.sidebar-left {
    position: fixed;
    z-index: 99;
    width: 85%;
    height: 100%;
    top: 0;
    left: 0;
    bottom: 0;
    right: 20%;
    background: #fff;
    z-index: 999;
    overflow: hidden;
}

.sidebar-roll {
    overflow-y: scroll;
}

.reveal {
    display: block;
}

.conceal {
    display: none;
}